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I have a Glasair with retractable landing gear. On occasion, the landing gear pump must kick on momentary to keep the landing gear up in the wing. If the battery is old and weak when this happens I get a power drop and it will kick off the servos. So, make sure something like that is not...

From the vendor data sheet provided in original post we have: Pressure Range of  0 to 1019.78 mm H2O, convert this to Inches. mm to Inches is 1 Millimeter = 0.03937007874 Inches. So, the new pressure range is 0 to 40.14881889 in H2O. The sensor has a full scale output of .20V to 4.7V...

I am using the TED antenna for my ADS 472. I notice lower performance with the ADS 472 vs. ADS 470. I see traffic blank in and out often. Also, see screenshot of the full USA weather with a lot of holes in coverage. Looks like the receiver is loosing lock and dropping data. This was an 1...

Dynon, I also recently upgraded my ADS from the 470 to the 472 and notice traffic blinking on/off the display. I never noticed this with the ADS470 so I feel it is related to the above posts. I am planning on flying to Oshkosh later this month and will get a lot of flight time to experience...

This is from the "What's New" in Skyview system software. Version 15.0.2 11/3/2016 New: Pitot/Static test mode that elmiminates the need for display restarts during transponder checks. Available via SETUP MENU > HARDWARE CALIBRATION > ADAHRS CALIBRATION > PITOT / STATIC TEST MODE. I had my...

I would add you can determine if you have a static port position error by taping shut one of you static ports and taking a leaf blower and blow across the open static port. Emulate in-flight airflow. While monitoring this on you SV if you see an altitude change you have static port position...

I do not have the EARTH X battery but found reference in their manual for the output you are having trouble with. You should connect it up as I have it on the attached drawing.  It should work.  if you connect it to both the panel indicator and the EMS you need the isolation diodes.  The EMS...

Don, Per the 15.0 SV install manual: You must set the RS232 output on your GTN to "ADS-B+" in order to be compliant. If you do not have that option in your GTN then you need a firmware update for the GTN. See page 11-38, SV 15.0 Install.

Looks like your GPS was not yet receiving a signal. The GPS needs to be outputting data in order to get "YES" with the compliance message. You will need to push your plane outside the hanger.

The ANSI standard color code for a type K thermocouple is RED and YELLOW, whereas YELLOW is +, and RED is -. Your guess is as good as any. You can connect it to a milivolt meter and place the probe between your fingers and verify the voltage rises as it heats up. The lead that is connected to...

Homebuilt101, Dynon can confirm this, but I believe if you are tapping off of LED's the "open or off" state may be too high impedance and not "pull down" the contact input enough to get a low "Gear Up" indication.  If this is the case you will need to add a pull down resistor ~5K Ohm should...

The un-energized lamp serves as the pull down. One side of lamp is connected to ground. If I remove the lamp or it burns open it will "pull up" and show as a "Green-Down" indication.

I also have a Glasair with capacitance plates in the Header tank and got a very small voltage change with each add. It works fine and accurate. I would just complete the calibration and see how well it works.

i agree the diodes will accomplish the same thing. In the diode case the contact input will rise to the pull up voltage at high input, and when signal is low it will lower to the forward bias level of the diode approximately .7 Volts. I was just interested if Dynon had changed the design in...

I currently must have 10 K resistors in series with my 3 landing gear contacts. With the full 14V signals going to the "Contact" inputs the engine status displays all "X"'s, only when all 3 are above 14V. With the 10 K resistors inline the voltage is reduced and it works OK. This started with...

Dynon, Any new info on what had changed with the "Contact" inputs? Kurt

The way I troubleshot this was I connected a bench adjustable power supply to the alternator output line and adjusted the power supply for 14.4 Volts.  I pulled circuit breakers and when I pulled my Landing Gear Control breaker the problem cleared. The only thing I have SV connected to Landing...

All the sensor's indicate "X". even the Tach and MP.

Dynon, Can you please explain why I am experiencing this? I just received my EMS-220 module back from Dynon after repairs.  The board was replaced per Dynon write up.  So I think I basically have a new EMS.  I performed the Software update to 15.0.4, network configure and loaded the .SFG and...

The purpose of any breaker is to protect the wiring. If a short circuit happens it should prevent damage and/or fire. The battery is on the other side of this wire. It can put out a lot more than 60A.